Needles are a source of anxiety for many, particularly for patients requiring frequent injections for chronic conditions like diabetes. Offering a potential breakthrough, researchers at IIT Bombay have developed a needle-free syringe, delivering drugs painlessly and safely using shockwave technology.
The innovative device, led by Prof. Viren Menezes from the Department of Aerospace Engineering, employs high-energy shock waves to create a microjet of liquid medication. This microjet penetrates the skin at nearly twice the speed of a commercial airplane during takeoff, ensuring minimal trauma and almost painless delivery.
How It Works
The device, roughly the size of a ballpoint pen, is equipped with a nozzle as fine as a human hair. This design ensures precise and comfortable drug delivery.
In laboratory tests on rats, the shock syringe demonstrated significant advantages:
- Anesthetics: Matched needles effectively, acting within 3–5 minutes and lasting 20–30 minutes.
- Viscous Drugs: Enhanced absorption by reaching deeper skin layers.
- Insulin Delivery: Maintained stable blood sugar levels for longer durations.
Additionally, tissue analysis showed faster healing and reduced inflammation than traditional injections, suggesting the syringe’s suitability for repeated use.
Future Applications
This innovation holds great promise for vaccination campaigns, especially for children, and reduces the risk of infections from needle-related injuries. With over 1,000 successful uses in tests, the device offers a cost-effective solution, requiring only periodic nozzle replacements.
While further development and regulatory approvals are needed, the shock syringe could soon transform medical practices, making injections pain-free and safer for patients worldwide.
